Umm, no. It's the only closed Audio Technica with a clear A900x label, demos at Best Buy. Been to various different Best Buys, and all of the A900x demos bored me to tears. I greatly prefer the Momentum that is basically next to the A900x. It's so inferior to the Momentum, I'd be pissed if I was AT and my headphones were next to the Momentum. At least the A900x was SLIIIIGHTLY less of a disappointment than the K550. Everything I read on those being dry, metallic and uninspired was true.

Even took the E17+E12 to the store to these them out.Edited by Mad Lust Envy - 10/19/13 at 6:30am

If anyone from the EU wants to build an X1 headset you can pair the X1 with the Reloop RHM-10 easily since the connector fits.

Nice find, but hefty impedance on those Feg (2.2 Ohm: at least they quote it!). Have emailed Beyer about these: http://europe.beyerdynamic.com/shop/hah/accessories/custom-headset-gear.html. Can't imagine they're any better impedance wise, but seeing as the stock cable on the X1 is 1.8 Ohm you never know. Also both cost a lot, but at least both are ideal if you're lucky to use headphones with detachable cables :)

EDIT: got a reply from Beyer:

The guys from our R&D department told me today that the impedance of the cable must be much below 1 Ohm. If you have further questions don’t hesitate to contact me.

Umm, no. It's the only closed Audio Technica with a clear A900x label, demos at Best Buy. Been to various different Best Buys, and all of the A900x demos bored me to tears. I greatly prefer the Momentum that is basically next to the A900x. It's so inferior to the Momentum, I'd be pissed if I was AT and my headphones were next to the Momentum. At least the A900x was SLIIIIGHTLY less of a disappointment than the K550. Everything I read on those being dry, metallic and uninspired was true.

Even took the E17+E12 to the store to these them out.

Hmm, I find that kinda strange... They are being compared to the DT990 a lot while being slightly different and inferior.

Pleather pads > I had a pair of Audio Technicas and I have to weigh in on this: if you've got stubble, and don't shave twice a day then you might as well give your cat your headphones to play with. Pleather gets ripped to sh** in no time (unless you're female or under 15). Had the A500's way back and within 2 months the pads were shredded badly at the bottom. Seriously avoid. And please note that I am not an ape.

Also too: avoid the A500's because they're anaemic, lifeless and dull (these are the closed backs - still costly). Might as well have tossed them to my cat on unboxing and saved me the effort.

After some research I find that AKG Q701 is too expensive for me (I am from Czech Republic and price here is 400$, and with earpads and amp it will be too much expensive). So I am thinking about Sony MDR MA900, these looks pretty nice and according to reviews they are good (and also price is nice). But do I still need a headphone amp with MA900 (which advised me Evshrug and PurpleAngel, FiiO E09k), or my Xonar DX is enough to MA900?

And I got advice to look on the AKG K612 pro. Could someone tell me something about K612, if they are also good for gaming, cause I didnt find some information and experiences with gaming. I read some review here on head-fi, comparision between K612 and K702, but still want to know your opinion guys, which one you think is better.

After some research I find that AKG Q701 is too expensive for me (I am from Czech Republic and price here is 400$, and with earpads and amp it will be too much expensive). So I am thinking about Sony MDR MA900, these looks pretty nice and according to reviews they are good (and also price is nice). But do I still need a headphone amp with MA900 (which advised me Evshrug and PurpleAngel, FiiO E09k), or my Xonar DX is enough to MA900?

And I got advice to look on the AKG K612 pro. Could someone tell me something about K612, if they are also good for gaming, cause I didnt find some information and experiences with gaming. I read some review here on head-fi, comparision between K612 and K702, but still want to know your opinion guys, which one you think is better.

Thank you for all replies and advices.

Unfortunately, I can't comment on any of the headphones you mentioned :/

After some research I find that AKG Q701 is too expensive for me (I am from Czech Republic and price here is 400$, and with earpads and amp it will be too much expensive). So I am thinking about Sony MDR MA900, these looks pretty nice and according to reviews they are good (and also price is nice). But do I still need a headphone amp with MA900 (which advised me Evshrug and PurpleAngel, FiiO E09k), or my Xonar DX is enough to MA900?

And I got advice to look on the AKG K612 pro. Could someone tell me something about K612, if they are also good for gaming, cause I didnt find some information and experiences with gaming. I read some review here on head-fi, comparision between K612 and K702, but still want to know your opinion guys, which one you think is better.

My sound card is the one that comes from maximus vi impact, Do I still need to buy a mix amp to have a better sound quality?Headphone choices are AKG K701 or AKG K702 or Senheiser HD598. I would be using this for games,music, and movies.

on the side note I still haven't bought that yet, still researching if the on board sound card is good.